Lubricating paint, lubricating coating and preparation method and application thereof

The invention provides a lubricating coating, a lubricating coating as well as a preparation method and application thereof, and relates to the field of lubricating coatings. The lubricating coating comprises a component A and a component B. The component A comprises, by weight, 50 to 150 parts of hyperbranched polysiloxane modified molybdenum disulfide, 10 to 30 parts of antimony trioxide, 3 to 9 parts of a dispersant, 3.8 to 11.4 parts of sodium fluosilicate, and 223 to 668 parts of deionized water. The component B is prepared from the following components in parts by weight: 100 to 300 parts of sodium silicate and 66 to 200 parts of deionized water. On one hand, the compatibility of the solid lubricant and the binder in the lubricating coating is good, and the prepared solid lubricating coating is low in vacuum friction coefficient, excellent in wear resistance and bearing capacity and excellent in atomic oxygen resistance; and on the other hand, the coating adopts a normal-temperature curing formula desig